I built a reverse proxy similar to Cloudflare Tunnels that can be self-hosted:
This came about because of how awkward Cloudflare Tunnels is to use in a development environment.
Ask HN: What are you working on? (March 2025)
31–40 of 1001 posts
Re: Ask HN: What are you working on? (March 2025)
#32Large scale classifications of text using LLM
Re: Ask HN: What are you working on? (March 2025)
#33Working on a new version of the deployment service [1] for my full-stack JS framework [2].
Re: Ask HN: What are you working on? (March 2025)
#34I realized that many seasoned developers do not yet grasp the power and productivity gains that tools like Cursor can not only provide to them, but ESPECIALLY to those that have a lot of experience and broad expertise.
Therefore, I‘m working on a mid- to longform blog post that details how precisely the competencies that senior developers and tech leads already have are the key to fully harness the potential of these tools.
And who knows, maybe I‘m going to develop this into some form of consulting or training side project.
Re: Ask HN: What are you working on? (March 2025)
#35Divepod - comp sci education program based on advisory model[1]. Instead of a fixed curriculum, each student is paired with an advisor who follows their interests and adapt the learning plan as they go. Something I wished I had as a teenager.
Re: Ask HN: What are you working on? (March 2025)
#36I’m writing an interpreter for the Starlark language in pure Kotlin (no JVM dependencies).
I had this idea in mind for some time already, it began with me wanting to build a simple programming language (and learn in the process) and interest in Bazel. I got started about a month ago by going through the Crafting Interpreters book by Bob Nystrom (it’s crazy good), but now Im straying further and further away from it.
Overall I find the project a great mixture of fun and challenging.
It’s a private repo for now because it’s in a pretty rough state, and is still missing a lot of stuff, but I will release as OSS at some point. That said if someone would like it could be fun:)
Re: Ask HN: What are you working on? (March 2025)
#37I've been building mentions.us[1] - it sends you alerts when your keywords are mentioned on Hacker News, Reddit, Bluesky, LinkedIn and a few other places. For anyone who uses F5Bot, it's similar but with some extra data sources and a Slack integration.
It's been a fun project. Dealing with the scale of Reddit (~300 posts/second) creates some interesting technical challenges. It's also let me polish up my frontend development skills.
I don't think it will ever be a money spinner - it has ~70 folks using it buy they're all on the free tier. It's felt really good to build something useful, though.
[1]: https://mentions.us
Re: Ask HN: What are you working on? (March 2025)
#38A linter for LLM application code (including prompts), i.e. programs that do LLM calls, scanning code issues related to security or performance:
Re: Ask HN: What are you working on? (March 2025)
#39I've always wanted workout tracking apps to take into respect how to track gymnastic rings, but no luck. So I decided to build my own: https://gravitygainsapp.com/
Re: Ask HN: What are you working on? (March 2025)
#40Two things:
1. A Haskell client library for Tigerbeetle db: https://github.com/agentultra/tigerbeetle-hs
2. smolstore, the smallest possible event sourcing database: https://github.com/agentultra/smolstore